Stropping and honing device



Sept- 1936- G. J. GANZERT 4 STROPPING AND HONING DEVICE Original FiledOct. 23, 1951 r m R om m w V m M We; {J9 z n 2m 5 i Q .l H

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'14 52 l Z9v 1-5 Patented Sept. 1, 1936 PATENT OFFICE STROPPING ANDHONING DEVICE George J. Ganzert, Clifi'side, N. J., 'assignor, by directand mesne assignments, to Interstate Mechanical Products Corporation, acorporation of New Jersey Application October 23,

1931, Serial No. 570,584

Renewed August 19, 1933 9 Claims.

This invention relates to stropping and honing.

Principal objects of the invention provide a stropping or honing deviceof simple and rugged construction, of low cost of material and assembly,and of simple insertion and withdrawal of a safety razor blade, and ofeffectual stropping or honing qualities.

Principal features of the invention reside in the cooperativeassociation of a two-part receptacle, one part termed the tray and theother the cover, and a herein termed carriage member for removablyreceiving a razor blade, the carriage member being positioned within thetray; to the inner face of the tray and the inner face of the cover 7are secured flat strips of leather or other suitable stropping medium orof suitable honing composition, the tray and the cover being readilyassembled to thereby interpose the carriage member and the thereinmounted razor blade, the cover and the tray being arranged for relativerecipro- 'cal motion, whereby the carriage member is reciprocated to andfro relative to the two stropping or honing strips, to effect thedesired'stropping or honing action, and to regulate at will the degreeof pressure in the stropping or honing action. I

The further particulars of my invention include a blade holder pivotallymounted on the carriage member, resilient means normally biasing theblade holder and therewith the razor blade in non-operative relationrelative to the stropping or honing strips, and frictionally efi'ectiveelements, such as friction oscillating members having fiat faces infrictional relationship with the inner faces of the tray and cover andcontrolling the blade holder to tilt the same in opposing angulardirections to relate the opposite cutting edges of the razor blade inproper stropping or honing relation with the stroppingor honing strips.

A primary feature of the invention resides in the assembly of cover andtray parts provided with stropping or honing elements, a razor bladecarrying carriage freely received within the cover and tray parts, andmechanism interconnecting the carriage relative to the cover and trayparts whereby the pressure between the edges of the razor blade and thestropping or honing elements is regulated at will by pressure appliedmanually to the cover and tray parts. 7

Such interconnecting mechanism comprises means pivot-ally carried by thecarriage and having suitable faces arranged to frictionally engage fiatfaces of the cover and tray, whereby the pressure exerted manually uponthe cover and the tray toward one another regulates at will the pressureeffected in the stropping or honing action.

Preferably such pivoted interconnecting means provides for lost motionin its connection with the blade supporting'member of the carriageFurther additional features reside in the utilization of Geneva gearwheels, the slots of each Geneva gear wheel effecting mesh relation withthe blade holder to afford the desired angular tilting in opposingdirections effective upon the reversed reciprocation of the tray and thecover, each slot having suflicientblearance to provide for lost motion,effective upon cessation of relative movement of I the tray and thecover, the resilient means, usually a pair of oppositely disposed fiatsprings, to instantly return; the blade holder and therewith the razorblade to non-operative relation with the stropping orhoning strips.

Further features and objects of the invention will be more fullyunderstood from the following detail description and the accompanyingdrawing, in which Fig. 1 is a perspective View of a preferred form of myinvention, the carriage member and a razor blade positioned on the bladeholder, being placed within the tray, the cover being shown demountedfrom the tray and with its inner face turned upwardly;

Fig. 2 is a central sectional elevation on section line 2-2 of Fig. 1,on an enlarged scale;

this view shows the blade holder and retained razor blade innon-operative positions and the cover displaced somewhat toward theleft-hand side relative to the tray;

Fig. 3 is a central sectional elevation, similar to Fig. 2, but showingthe movement of the cover toward the right-hand side, relative to thetray, the blade holder and retained razor blade being shown tilted andin operative relation to the stropping or honing strips;

Fig. 4 is a transverse vertical sectional elevation on section line 4-4of Fig. 2; and

Fig. 5 is a detail vertical elevation on section line 55 of Fig. 4, onan enlarged scale.

alternatively either for stropping or honingpurassembly of the'same.

One strip ID of stropping medium, such as leather, is shown secured tothe inner, face of the top of the cover II, and the other strip I2 ofthe stropping medium is shown secured to the inner face of the tray I3.Each-strip I0, I2, is of rectangular configuration and respectively positioned to provide for exposure of the material of the top of the coverand the bottom of the tray, to provide run-ways thereat, as will appearmore fully hereinafter. The strips I0, I2, are secured in position byany suitable adhesive, or other procedure.

The cover I I and tray I3 are provided for ready assembly anddisassembly relative to one another and for afiording when assembledlongitudinal relative movement, effected by grasping the tray with onehand and the cover with the other hand and imparting reciprocalrelativernotion to and fro. One form of such mounting and dismountingrelation is had by providing one longitudinal side I4 of thetray'with anoutwardly turned flange I5 and theother longitudinal sideIfi'substantiall vertically rectilinear, its upper edge beingsubstantially level with theupper face of the flange I5 of the oppositelongitudinal side I4, and the left-hand end I"! and the right-hand endI8 of the tray of reducedheight, as compared with the longitudinal sidesI4, 16.

The cover I I, for the purpose of ready assembly and disassemblyrelative to the tray I3, is provided with oppositely disposed,longitudinally extending, inwardly turned flanges I9, 26, see Figs. 1and 4, the longitudinal flanges I 9, 20, being preferably related withrespect to the plane body portionof the cover II to provide the arcuate,downwardly extending longitudinal edge portions 2|, 22, whereby, uponexerting pressurein the manual reciprocation of the cover II and trayI3. the upper face of the outwardly extending flange I5 of the side I4of the tray I3 and the upper edge of the longitudinal side I6 of thetray I3 engage such arcuate portions 2I, 22,respectively to afford ahinged connection for theassembly of the cover and the tray, and areliable interlocking relationship during the stage of reciprocation ofthe cover and the tray, and also the ready. dis- To enhance theinterlocking relationship between the cover and the tray, the spacedteats 23, formed by outwardly pressing the metal of the longitudinalside I3, or other form. of lug or protuberancamay be provided. Thecarriage and its associated blade holder may be formed of any suitableconstruction, an essential feature being the provision of frictionalrelationship between the blade holder in both respect to the cover andthe tray when assembled, the carriage having been placed within thetray, whereby upon application of manual force exerted by the hands toand fro reciprocation of the same relative to one'another, the bladeholder is tilted in proper stropping relation relative to. the stroppingelements and the carriage is bodily reciprocated within the tray. 7 a 1Ason form of carriage assembly, I provide the rectangular frame orcarriage member 24 (a detail construction being referred to more fullyherein-after), in which the blade holder 25 is pivotally mounted, arazor blade being indicated at 26, and oppositely disposed frictionallyoscillated members or wheels 21 mounted on bearing studs 28, integral orotherwise secured to the carriage member 24. The friction gear wheels21, 27 have the flat cylindrical or other arcuate surfaces of aneffective diameter substantially equal to the clearance'between theinner face of the top II and the inner face of the tray I3 as providedfor in the respective trackways 29, 29, of the tray I3 and trackways 30,30 of the cover II, see Figs. "1 and 4.

The blade holder 25 may be of any suitable construction, and asillustrated comprises essentially a flat plate, preferably stamped andshaped to provide oppositely extending trunnions 32, initially of thethickness of the plate but folded back upon itself at the terminalportions, see 33; also, preferably, spaced oppositely disposed, extrudedlugs 34, 34, received within and to locate the usual correspondinglypositioned retaining perforations of present types of razor blades.Additional features of the blade holder 25 are illustrated and referredto hereinafter.

Cooperating with the friction gear wheels 21 ber 24 comprises the footelements 35, 35, positioned respectively at opposing corners andoppositely dimensioned to be located in and reciprocated within the twotrackways 29, 30; also, an upwardly flanged cross-bar 36 at the end ofthe frame adjacent the foot elements 35, also a similar upwardly flangedcross-bar 31 at the opposite end of the frame, and opposing, punchedbearing openings 38 for receiving the trunnions 32 of the blade holder.Such foot elements 35 may be equipped with rollers.

The resilient means for biasing the blade holder to its neutral ornon-operative position are illustrated as a pair of oppositely relate-dflat springs 39, 39; the free end of each spring being received freelyin a horizontal slot 4G suitably formed in a vertically extending tongue4i, formed in the respective longitudinal side flanges 42 of the frame;the fixed end of each flat spring '39 is riveted, see 39a, to thelateral edges of the blade. holder 25 adjacent to the longitudinal sideflanges 42 of the frame of the carriage. Each tongue 4I serves also tolimit the angle of tilt of the blade holder to preclude possiblewithdrawal of its spring 39 from its slot 40.

.Each longitudinal side flange 42.0f the carriage member servesgenerally to properly locate the carriage member relative to thelongitudinal sides I4, I6, of the tray, and the studs 28 for 'slot 44receiving a lateral edge of the flat body portion of the holder 25, itsslot 44 being preferably outwardly tapered, see 440., to provide thedesired lost motion between the blade holder and each wheel 21, toafford instant biasing of the blade holder to its neutraL-i. e.,non-operative position and therewith the inserted razor blade 3 26,relative to the stropping elements. l0, l2, clamping blade45;.thel'atter-as above explained upon cessation of reciprocal movementof the cover and the tray relative to. oneanother..

The-razor blade 26 is preferably locked in its inserted position,relative to the blade holder 25, as by means of aclamping plate45,:whi'ch preferably is of, resilient material, such as spring steel,archedlongitudinally and transversely, up-

-wardly flanged at one end' lfijto serve as a manipulating element.Cooperating with'-- such clamping plate I provide a locking hook l'l,formed as a tonguefrom the body of the fiat body portion of the bladeholder 25; Such'tong'ue hook 41 preferably is downwardly'extruded, see

48, near its free end, to form asdownwardlyex tending lug which isreceived within arecess. 49

formed in the clampingplate 45, and by reason of the resiliency of theplatediserves as'a snap lock.

p The operation of my stropping (and honing) device will be largelyunderstood from the foregoing description. I

The parts whenassembled, prior to reciprocation, assume their positionsas illustrated in Fig. 2; upon manuallyapplying reciprocating force tothe cover and the tray, .s'ay, displacing the cover in the direction ofthe indicating arrow 55, see Fig. 3, the frictional engagement of eachwheel 21. with the respective inner faces ofthe trackways of the coverand the tray cause each wheel to partially rotate in clockwise directionas viewed in'Fig.' 3, the blade holder 25 being tilted incounterclockwise .direction against the urge of its springs 39,=untilthe opposite edges of the razor blade engage the respective: stropofopposite tapered faces of the two edges of the razor blade. Theremaining tapered faces of the two razor edges are subjected tostropping (or honing) action upon the reversed displacement of the coverand the tray, and such reciprocation is continued as may be desired. V I

The degree of stropping (or honing) action is regulated by the degree ofpressure exerted by the hands of the user-toward one another upon thecover and the tray.

In the event that such pressure accompanied by the reciprocation isslight, giving rise possibly to but a partial displacement of thecarriage within the tray, the full displacemet of thecarriage is insuredby the downwardly depending end flanges llw, which clear the end flangesl1, l8, of the tray but engage the respective end bars 36,31, of thecarriage, and displaces the carriage for its full range'of movement.

Upon completion of thestropping or honing operation, the razor blade isremoved from the blade holder by grasping the hand hold 46' of theclamping blade 45, to remove'the clamp and therewith enable the razorblade to be removed. It is more convenient to remove the razor bladefrom the carriage, by removing the carriage from the tray. ,Upon removalof the razor blade from the blade holder, the clamping blade 45 may bereplaced, the locking lug serving to retain the being preferably; archedcentrally, to insure clamping of the clamping blade notwithstanding theabsence of an interposed razor blade.

It'will be observed that the ears 5|, extending from theoppositelydisposed side bars 42 of the frame of the carriage,-are effective whenthe car- 'r'iagehas been removed from the tray, during the operations ofinsertion and withdrawal of a razor blade; the stops 5| limiting thetilting movement of the blade holder 25to serve as an abutment for thesame, and also serving to pre- Lclude Withdrawal of the free ends of thebiasing springs 39 from their guide slots 40.-

From the above, it will be apparent that I have provided a stropping orhoning device of especial simple construction of the individual partsand --of ready assembly of the parts. It will also be noted, and'as iscarried out in manufacture, that the majority of 'parts may be formed ofmetal, such as cold rolled-steel, punched, bent, extruded or otherwiseformed to embody the individual constructive features hereinabovedescribed. The metallic parts are protected from corrosion by suitabletreatment, as nickeling, if of steel or .the like, or non-corrodiblemetal or metal alloy may be employed.

From the above, it'will also be apparent that my stropping or honingdevice embodies a tray, a cover reciprocably mounted relative to thetray, stropping and honing elements respectively secured-towthe innerfaces of the tray and the cover, clearances being provided at theopposite longitudinal edges of the stropping or honing ele--mentsto.form. trackways', and a carriage being :interposed between thetray'and the cover, the

carriage being eq'uipped'with a blade holder for tilting the insertedrazor blade in opposing directions and further equipped with a movableelement, preferably a pair of oppositely disposed oscillated elements,such element or elements being non-mechanically related to the tray andthe .cover excepting by frictional engagement therewith, thus affordinga free, that is to say, -a non-fixed mechanical assembly between thecarriage, the cover and the tray, such element or elements'utilizingsuch trackways, whereby upon regulated frictional engagement exercisedmanually coincident with'the reciprocated movement of the cover relativeto the tray, the stroppingor honing effect is attained, and with thedesired degree of pressure of the respective faces of the oppositeshaving edges of the razor blade upon the stropping or honing elements.

Whereas I have illustrated the connection between the movable elementand the blade holder as comprising a gear provided with a slot fordirectly receiving the blade holder, to effect the opposing tiltingoperation it will be understood bination of a tray, 2. coverreciprocally mounted relative to said tray, said cover and said traybeing movable toward and from each other, stropping or. honing elementsrespectively secured to the inner faces of said tray and said cover,clearances being provided at opposite longitudinal edges ofsaid-z-stropping or honing elements, a carriage arranged to be disposedwithin said tray, means on. said cover for reciprocating the carriagelongitudinally of the tray, a pair of pivoted elements having faces forsupporting said carriage, a blade holder for removably receiving a razorblade, and springimeans connecting said pivoted elements with said bladeholder for effecting the tilting and for regulating at will the pressureof said blade holder and therewith of the inserted blade relative to thestropping or honing elements.

2. In a stropping or honing device, the combination of a cover, a trayreciprocably mounted relative to said cover, a carriage for supporting arazor blade, said carriage being received within said tray, saidcarriage including a movable member engaging and displaceable relativeto said tray and said cover, upon pressure manually applied to said trayand said cover controlled by said movable member, lost motion vmeansinterposed between said tiltable blade holder and said movable member,resilient means normally biasing said blade holder to its neutralposition, and stroppingxor honing elements carried by said tray'and saidcover.

3. In a stropping or honing device, the combination of a cover, a trayreciprocably mounted relative to said cover, a carriage for supporting arazor blade, said carriage being received within said tray, saidcarriage including a rotatable member engaging and displaceable relativeto said tray and said cover, upon pressure manually applied to said trayand said cover, said carriage further including a tiltable blade holdercontrolled by said rotatable member, lost motion means interposedbetween said tiltable blade holder and said movable member, resilientmeans normally biasing said blade holder to its neutral position, andstropping or honing elements fixedly carried by said'tray and saidcover.

4. In a stropping or honing device, the combination of a cover, a trayreciprocably mounted relative to said cover, a carriage for supportin arazor blade, said carriage being freely received within said tray, saidcarriage including a pair of oppositely disposed movable membersrespectively engaging and displaceable relative to said tray and saidcover, upon pressure manually applied to said tray and said cover, saidcarriage further including a tiltable blade holder con trolled by saidmovable members, lost motion means interposed between said tiltableblade holder and said movable member, resilient means normally biasingsaid blade holder to its neutral position, and stropping or honingelements fixedly carried by said tray and said cover.

5. In a stropping and honing device, a tray, a cover, said tray and saidcover being reciprocably related to one another, stropping or honingelements, carried by said tray and cover respectively, a carriagemountable Within said tray, pivoted means carried by said carriage, anddisplaceable upon pressure applied to said cover and said tray, a fiatplate pivotally mounted on said carriage for supporting a razor blade,lost motion means interposed between said rotary means and said flatplate, resilient means normally biasing said flat plate toward itsneutral position, and connection means including lost motionmeansbetween-said flat plate and said pivoted means for tiltingsaid fiatplate in opposing. directions upon opposite directions of reciprocationof the cover and tray, whereby the pressure between the razor blade andsaid stropping or honing elements is regulated at will by the pressureapplied to the cover and the tray.

I 6. In a stropping or honingv device, the combination of a cover, atray reciprocably mounted relative toe-the cover, a carriage forsupporting a razor-blade, said carriage being received within the tray,movable means subject to pressure. exerted manually upon the cover andthe tray for regulating at will the pressure imparted to the razorblade, lost motionmeans interposed between said movable. means and therazor blade, and stropping or honing elements carried by the .trayandthe cover. q

'7. In a stropping or honing device, the combination ofra tray, astropping or honing element carried on the inner face of said tray andextending longitudinally thereof, said tray having a flat face portionextending longitudinally of the stropping or. honing element, a cover, astropping or honing element carried on the inner face of the cover andextending longitudinally thereof, the inner face of said cover having aflat face portion extending longitudinally of its stropping and honingelement, a carriage, means for tiltingly mounting a razorblade insaidcarriage, .movable means carrled'by said carriage including lost motionmeans affecting the extent of tilt of said razor blade mounting means,said movable means engaging the flat face portion of the innerface of.said tray and the flat face portion of the inner face of said cover,andmeans loosely and detachably interconnecting said cover and said trayto afford reciprocation of said cover and said tray relativev to oneanother and to dually afford at will movement of said cover and saidtray toward or from one another.

8. In a stropping or honing device, the combination of a tray, astropping or honing element carried on the inner face of said tray'andextending longitudinally thereof, said tray having a flat face portionextending longitudinally of the stropping or honing element, a cover, astropping or honing element carried on the inner face of the cover andextending longitudinally thereof, therinner face of said cover having afiat face portion extending longitudinally of its stropping and honingelement, a carriage, means for tiltingly mounting a razor blade in saidcarriage, pivotally movable means carried by said carriage includinglost motion means affecting the extentof tilt of said razor blademounting means, said movable means engaging the flat face portion of theinner face of said tray'and the flat face portion of the inner face ofsaid cover, and means loosely and detachably interconnecting said coverand said tray to afford reciprocation of said cover andsaid-trayrelative to one another and to dually afford at will movement of saidcover and said tray toward or'from one another.

9. In a honing or stropping device, thecombination of a tray, astropping or honing element carried on the inner face of said tray andextending longitudinally thereof, said tray having a flat face portionextending longitudinally of the stropping or honing element, a cover, astropping or honing element carried on the inner face of the coverandrextending longitudinally thereof, the inner face of said coverhaving a flat face portion extending longitudinally of its stropping andhoning element, a carriage, means for tiltingly mounting a razor bladein said carriage, movable means carried by said carriage includingresilient means, a housing for one end of the resilient means and inwhich the resilient means is freely slidable, said resilient means andhousing cooperating to aflect the extent of tilt of said razor blademounting means, said movable means engaging the flat face portion of theinner face of said tray and the fiat face portion of the inner face ofsaid cover, and means loosely and detachably interconnecting said. coverand said tray to afford reciprocation of said cover and. said trayrelative to one another and to dually afford at will movement of saidcover and said tray toward or from one another, said cover and trayinterconnecting means including stops for limiting the extent of theirrelative reciprocal movement.

GEORGE J. GANZERT.

